3.2. Chromium, a micromineral needed for maintenance of blood sugar levels, has four naturally occurring isotopes.Calculate the number of protons and number of neutrons in each of the following isotopes:5324af tha fallawina:Cr50245224CrCrenb

The isotopes of chromium are given as follows:

Answered: 3.2. Chromium, a micromineral needed…

Chemistry: Matter and Change

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ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

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Chapter4: The Structure Of The Atom

Section: Chapter Questions

Problem 76A

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An unmanned space shuttle mission brings samples back to Earth from Mars. Working with samples from mars, you discover that the isotope abundances on Mars are different from on Earth. You are tasked with calculating the average atomic mass (weight) of nitrogen that exists naturally on Mars. You find that the abundance of nitrogen-15 (atomic mass of 15.000 amu) on Mars is 11.639%, and the rest of the nitrogen (abundance = 100% - 11.639%) is nitrogen-14 (atomic mass 14.003 amu). Using that information, what is the average atomic mass (in amu) of nitrogen on Mars? (answer should have 3 decimal places - only input numbers, not "amu")
Thallium has two stable isotopes, 203TIand 205TI. Knowing that the atomic weight of thallium is 204.4, which isotope is the more abundant of the two?
Thillium has two stable isotopes, T1 203 and T2 205.Knowing that the atomic weight of thillium is 204.4, which isotopes is the more aboudance of the two?
2.72 How can an element have an atomic weight that is not an integer?
Bromine has two occuring isotopes: 79Br with atomic mass 78.9183 and 81Br with atomic mass 80.9163. Without using a calculator, what would you estimate the % abundance of Br-79 to be?
Radon is a radioactive gas that can cause lung cancer. It has been detected in the basement of some homes. In an atom of Rn-220, (a) how many protons are there? (b) how many neutrons are there?
A mass spectrometer determines isotopic masses to eight or nine significant digits. What limits the atomic mass of carbon to only five significant digits?
Average atomic masses listed by JUPAC are based on a study of experimental results. Bromine has two isotopes 79Br and 81Br, whose masses (78.9 183 and 80.9 163 amu) and abundances (50.69% and 49.3 1%) were determined in earlier experiments. Calculate the average atomic mass of bromine based on these experiments.
2.19 Naturally occurring uranium consists of two isotopes, whose masses and abundances are shown below: Only 235U can be used as fuel in a nuclear reactor, so uramium for use in the nuclear industry must be enriched in this isotope. If a sample of enriched uranium has an atomic weight of 235.684 amu, what percentage of 235LT is present?
Europium has two stable isotopes, 151Eu and 153Eu, with masses of 150.9197 u and 152.9212 u, respectively. Calculate the percent abundances of these isotopes of europium.
Cesium, Cs, is used in photoelectric cells (electric eyes). The cesium nucleus has a charge of +55. What is the number of electrons in the neutral atom? in the Cs+ ion?
Chlorine has two prominent isotopes,37Cl and35Cl . Which is more abundant? How do you know?

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3.2. Chromium, a micromineral needed for maintenance of blood sugar levels, has four naturally occurring isotopes. Calculate the number of protons and number of neutrons in each of the following isotopes: 53 24 af tha fallawina: Cr 50 24 52 24 Cr Cr enb